12011122210000 has 100 divisors (see below), whose sum is σ = 29081868051412. Its totient is φ = 4804161408000.

The previous prime is 12011122209967. The next prime is 12011122210079. The reversal of 12011122210000 is 1222111021.

It can be written as a sum of positive squares in 10 ways, for example, as 3090578064016 + 8920544145984 = 1758004^2 + 2986728^2 .

It is a tau number, because it is divible by the number of its divisors (100).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 264347284 + ... + 264392716.

Almost surely, 2^{12011122210000} is an apocalyptic number.

12011122210000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12011122210000 is an abundant number, since it is smaller than the sum of its proper divisors (17070745841412).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12011122210000 is an equidigital number, since it uses as much as digits as its factorization.

12011122210000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71898 (or 71877 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 12011122210000 its reverse (1222111021), we get a palindrome (12012344321021).

The spelling of 12011122210000 in words is "twelve trillion, eleven billion, one hundred twenty-two million, two hundred ten thousand".